Customer.io Outage History
Uptime record, past incidents, and downtime history for Customer.io.
Checking current status...
90-Day Trend
Monthly Uptime
| Month | Uptime | Days Tracked | Days with Issues |
|---|---|---|---|
| May 2026 | 96% | 25 | 1 |
| April 2026 | 90% | 30 | 3 |
| March 2026 | 96.8% | 31 | 1 |
| February 2026 | 100% | 5 | 0 |
Uptime is calculated from daily worst-status snapshots. A day with any non-operational status counts as a day with issues.
Daily Status (Last 91 Days)
Feb 24
Today
Operational
Degraded
Partial Outage
Major Outage
Maintenance
No Data
Incident History
May 2026
Some customers in our EU region may experience errors and delays
Started: May 6, 4:00 PM
monitoring
The UI is available as expected, and we are monitoring before marking this as fully resolved. Thank you again for your patience!
May 6, 4:14 PM
identified
Our engineers are looking into an issue where some workspaces aren't loading as expected. Processing and deliveries may be delayed. We're working to get this resolved and will post an update soon. Thank you for your patience!
May 6, 4:00 PM
April 2026
Delay in Salesforce & Hubspot data-in integrations
Started: Apr 20, 7:52 PM
monitoring
We have identified the issue, released a fix, and are currently monitoring integrations.
Apr 20, 8:04 PM
investigating
We are currently investigating an issue impacting Salesforce and Hubspot data-in integrations in the US region.
Apr 20, 7:52 PM
Customer.io UI is currently unavailable for some customers
Started: Apr 20, 4:50 PM
monitoring
The UI is available as expected, and we are monitoring before marking this as fully resolved. Thank you again for your patience!
Apr 20, 5:03 PM
investigating
Our engineers are looking into an issue where some workspaces aren't loading as expected. We're working to get this resolved and will post an update soon. Thank you for your patience!
Apr 20, 4:55 PM
Some customers in our EU region may experience errors and delays
Started: Apr 17, 8:07 PM
monitoring
A fix has been implemented and we are monitoring the results.
Apr 17, 8:13 PM
identified
The issue has been identified and a fix is being implemented.
Apr 17, 8:08 PM
investigating
We are currently investigating this issue.
Apr 17, 8:07 PM
Integration Destinations UI Disruption
Started: Apr 13, 6:26 PM
identified
The issue has been identified in the UI and a fix is being deployed.
Apr 13, 6:28 PM
investigating
Our team is aware of an issue affecting Integrations with destinations in EU/US. We are looking into this and gathering more details. Data import and export is still working, only the UI is effected.
Apr 13, 6:26 PM
EU Region API Processing Delays
Started: Apr 7, 4:46 PM
investigating
We are continuing to investigate this and will be back again as soon as we have an update. Thank you for your continued patience!
Apr 7, 5:26 PM
investigating
Some customers in our EU region may be experiencing delays with processing data sent in through our API. Our team is investigating the cause and will provide an update soon. Thank you for your patience!
Apr 7, 4:46 PM
March 2026
Domain Verification Currently Unavailable
Started: Mar 16, 9:30 AM
monitoring
A fix has been implemented and we are monitoring the results.
Mar 16, 9:48 AM
identified
The issue has been identified and a fix is being implemented.
Mar 16, 9:38 AM
investigating
Customers are unable to add or edit unverified sending domains.
Mar 16, 9:30 AM